Cheap Mercedes Benz Slk cars under £20,000
With a budget of £20,000 you can grab a great bargain. Most of the cars advertised on our site are heavily reduced in price and come with a free history check
120 Mercedes Benz Slk cars under £20,000 - 41 reductions
Change budget
Recently reduced (41)
£18,991
Was £19,991 Save £1,000
Mercedes Benz SLK 5.4 SLK55 V8 AMG Convertible 2dr Petrol G Tronic Euro 4 (360 ps)
2009 | 56,555 miles | Convertible | 5439 | petrol | automatic | 2 doors
Comes with centre console storage, audio, full service history, audio 20, bluetooth interface, passenger, wind deflector, sports suspension, service history, bluetooth, centre console, alloy wheels, mp3 compatible, alloys, speakers, climate control, radio, auto...eee
£17,490
Was £19,490 Save £2,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol 7G Tronic (288 g/km, 360 bhp)
2007 | 61,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Description includes alloy wheels, exterior lighting, air bag, anti lock brakes, steering wheel leather, computer, leather, climate control, full service history, service history, bluetooth, heated seats, cruise control, electronic stability programme, steering wheel mou...eee
£16,695
Was £16,995 Save £300
Mercedes Benz SLK 3.5 SLK350 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (306 ps)
2015 | 30,000 miles | Convertible | 3498 | petrol | automatic | 2 doors
Features on this model include We have much more to tell you about this car so please feel free to call us for more details...eee
£12,750
Was £12,995 Save £245
Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)
2016 | 52,704 miles | Convertible | 2143 | diesel | automatic | 2 doors
This model has heated seats, 18in alloy wheels, air conditioning, airbags, navigation system, part exchange welcome, driver, anti lock braking system, alloy wheels, finance available, automatic, leather, abs, mot, air con, black, service history, airbag...eee
£11,799
Was £11,995 Save £196
Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)
2016 | 62,597 miles | Convertible | 2143 | diesel | automatic | 2 doors
Comes with diesel, heated front seat, passenger, 18in alloy wheels, black, anti lock braking system, leather, alarm, pas, airbag, alloy wheels, radio, heated seats, driver, warranty, air con, audio, heated front seats, air conditioning, parktronic, abs, sat nav...eee
£10,500
Was £11,500 Save £1,000
Mercedes Benz SLK 2.1 SLK250 CDI AMG Sport Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)
2015 | 47,200 miles | Convertible | 2143 | diesel | automatic | 2 doors
This car has bluetooth, brake assist, automatic, cruise control, low mileage, leather interior, alloy wheels, heated seats, cd, dab radio, climate control, alarm, 18in alloy wheels, leather, audio, bluetooth interface, hpi clear, air con, navigation system, dayti...eee
£10,495
Was £10,995 Save £500
Mercedes Benz SLK 3.0 SLK280 7G Tronic 2dr
2007 | 24,700 miles | Convertible | 2996 | petrol | automatic | 0 doors
Description includes computer, electronic stability programme, power assisted steering, pas, traction control system, air con, upholstery cloth, speakers, front fog lights, cruise control, adjustable steering column/wheel, spare wheel, central door locking, driver, leath...eee
£9,995
Was £10,495 Save £500
Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)
2015 | 66,000 miles | Convertible | 2143 | diesel | automatic | 2 doors
Includes alloys, bluetooth, air con, brake assist, airbag, air conditioning, airbags, audio 20, automatic, audio, service history, anti lock braking system, full leather, leather, alloy wheels, pas, bluetooth interface, warranty, radio, black, abs, 18in alloy...eee
£9,750
Was £9,950 Save £200
Mercedes Benz SLK SLK 200 BlueEFFICIENCY AMG Sport 2dr Tip Auto
2012 | 54,000 miles | Convertible | 1796 | petrol | automatic | 2 doors
Features include remote boot release, alloy wheels, automatic headlamp activation, dab digital radio, alarm, air conditioning, cd, immobiliser, navigation system, esp, usb, 18in alloy wheels, radio, bluetooth, tinted glass, wind deflector, automatic, speakers, blueto...eee
£9,699
Was £10,799 Save £1,100
Mercedes Benz SLK 2.1 SLK250 CDI Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)
2014 | 36,624 miles | Convertible | 2143 | diesel | automatic | 2 doors
Comes with passenger, alarm, air con, cloth, aluminium trim, 17in alloy wheels, air conditioning, airbags, automatic transmission, automatic, black, speed limiter, abs with brake assist, dab digital radio, anti lock braking system, radio, cloth interior, led da...eee
120 cars under £20,000
£19,990
Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS+7GT Euro 5 (s/s) (421 ps)
2013 | 56,000 miles | Convertible | 5461 | petrol | automatic | 2 doors
Includes panoramic sunroof, paddle shift, audio, parking sensors, daytime running lights, leather, bluetooth, cruise control, led daytime running lights, rear parking sensors, automatic, sat nav, radio, full service history, automatic headlights, black, sunro...eee
£18,991
Was £19,991 Save £1,000
Mercedes Benz SLK 5.4 SLK55 V8 AMG Convertible 2dr Petrol G Tronic Euro 4 (360 ps)
2009 | 56,555 miles | Convertible | 5439 | petrol | automatic | 2 doors
Features include wind deflector, alloys, passenger, cd, bluetooth, full service history, bluetooth interface, service history, auto climate control, centre console storage, climate control, mp3 compatible, audio 20, speakers, pas, bluetooth system, audio, centre cons...eee
£17,490
Was £19,490 Save £2,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol 7G Tronic (288 g/km, 360 bhp)
2007 | 61,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Comes with adjustable steering column/wheel, climate control, full service history, computer, exterior lighting, anti lock brakes, electronic stability programme, service history, air bag, parktronic, alloy wheels, central door locking, bluetooth, black, alarm,...eee
£17,350
Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS MCT Euro 5 (s/s) (421 ps)
2012 | 79,431 miles | Convertible | 5461 | petrol | automatic | 2 doors
Features on this model include alarm, airbag, service history, black, airbags, air conditioning, automatic, anti lock braking system, alloy wheels, automatic transmission, 18in alloy wheels, immobiliser, pas, abs, leather interior, air con, driver, leather, passenger...eee
£16,695
Was £16,995 Save £300
Mercedes Benz SLK 3.5 SLK350 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (306 ps)
2015 | 30,000 miles | Convertible | 3498 | petrol | automatic | 2 doors
Includes We have much more to tell you about this car so please feel free to call us for more details...eee
£15,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2d 5439cc 7G Tronic
2007 | 63,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Description includes speakers, air bag, electric windows, driver, central door locking, alloy wheels, spare wheel, adjustable steering column, leather, electric windows (front), adjustable steering column/wheel, steering wheel mounted controls, climate control...eee
£14,995
Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto
2015 | 39,000 miles | Convertible | 1991 | petrol | automatic | 0 doors
This car has trip computer, leather interior, black, alloys, petrol, service history, computer, daytime running lights, full service history, leather, registered keeper, mot, sports seats, convertible, led daytime running lights...eee
£14,000
Mercedes Benz SLK 5.4 SLK55 AMG 2d AUTO 356 BHP
2007 | 40,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Comes with climate control, speakers, steering wheel mounted controls, cruise control, air bag driver, exterior lighting, leather, air bag passenger, passenger, adjustable steering column, spare wheel, electric windows (front), third brake light, air bag, steer...eee
£12,990
Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)
2016 | 56,500 miles | Convertible | 2143 | diesel | automatic | 2 doors
Features on this model include speed limiter, climate control, hpi clear, audio 20, audio, finance available, dab digital radio, daytime running lights, heated front seat, cruise control, rear parking sensors, automatic, heated front seats, alloy wheels, wind deflector, automatic ...eee
£12,750
Was £12,995 Save £245
Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)
2016 | 52,704 miles | Convertible | 2143 | diesel | automatic | 2 doors
Features on this model include airbags, navigation system, black, driver, mot, air con, airbag, anti lock braking system, leather, heated seats, 18in alloy wheels, abs, alloy wheels, finance available, part exchange welcome, automatic, air conditioning, service history...eee
We currently have 120 Mercedes Benz Slk cars available across the UK priced under £20000.
